int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct ieee80211_channel *chan,
const u8 *bssid,
const u8 *ssid, int ssid_len,
struct cfg80211_assoc_request *req)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
ASSERT_WDEV_LOCK(wdev);
if (wdev->current_bss &&
(!req->prev_bssid || !ether_addr_equal(wdev->current_bss->pub.bssid,
req->prev_bssid)))
return -EALREADY;
cfg80211_oper_and_ht_capa(&req->ht_capa_mask,
rdev->wiphy.ht_capa_mod_mask);
cfg80211_oper_and_vht_capa(&req->vht_capa_mask,
rdev->wiphy.vht_capa_mod_mask);
req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
if (!req->bss)
return -ENOENT;
err = rdev_assoc(rdev, dev, req);
if (!err)
cfg80211_hold_bss(bss_from_pub(req->bss));
else
cfg80211_put_bss(&rdev->wiphy, req->bss);
return err;
}
int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct ieee80211_channel *chan,
const u8 *bssid,
const u8 *ssid, int ssid_len,
struct cfg80211_assoc_request *req)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
bool was_connected = false;
ASSERT_WDEV_LOCK(wdev);
if (wdev->current_bss && req->prev_bssid &&
ether_addr_equal(wdev->current_bss->pub.bssid, req->prev_bssid)) {
/*
* Trying to reassociate: Allow this to proceed and let the old
* association to be dropped when the new one is completed.
*/
if (wdev->sme_state == CFG80211_SME_CONNECTED) {
was_connected = true;
wdev->sme_state = CFG80211_SME_CONNECTING;
}
} else if (wdev->current_bss)
return -EALREADY;
cfg80211_oper_and_ht_capa(&req->ht_capa_mask,
rdev->wiphy.ht_capa_mod_mask);
cfg80211_oper_and_vht_capa(&req->vht_capa_mask,
rdev->wiphy.vht_capa_mod_mask);
req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
if (!req->bss) {
if (was_connected)
wdev->sme_state = CFG80211_SME_CONNECTED;
return -ENOENT;
}
err = cfg80211_can_use_chan(rdev, wdev, chan, CHAN_MODE_SHARED);
if (err)
goto out;
err = rdev_assoc(rdev, dev, req);
out:
if (err) {
if (was_connected)
wdev->sme_state = CFG80211_SME_CONNECTED;
cfg80211_put_bss(&rdev->wiphy, req->bss);
}
return err;
}
